ISRO Telemetry Tracking and Command Network (ISTRAC), Bengaluru has announced the exam date for its ongoing recruitment under Advt. No. ISTRAC:02:2026. The Computer Based Test (CBT) will be held on 25 September 2026 for all 26 posts covered by the advertisement — Technician-B, Draughtsman-B, Technical Assistant, Scientific Assistant, Library Assistant-A and Cook-A. Online applications for this recruitment closed on 20.07.2026, and call letters for the CBT will be sent only to the registered e-mail ID and mobile number of screened-in candidates.
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Update Overview
| Update Type | Exam Date Announced — Date of Computer Based Test (CBT) |
| Post Name | Technician-B, Draughtsman-B, Technical Assistant, Scientific Assistant, Library Assistant-A and Cook-A |
| Organization | ISRO Telemetry Tracking and Command Network (ISTRAC), Department of Space, Government of India, Bengaluru |
| Notification / Advertisement No. | Advt. No. ISTRAC:02:2026 dated 27.06.2026 |
| Location | All India / Central Govt (posts identified at ISTRAC Bengaluru, MCF Hassan, SDSC SHAR Andhra Pradesh, NESAC Umiam, ISTRAC Sri Vijayapuram and ISTRAC Thiruvananthapuram; liable to be posted anywhere in India) |
| Related Recruitment | ISTRAC Recruitment 2026 — 26 posts; online applications closed on 20.07.2026 |
| Date of Computer Based Test | 25.09.2026 |
| Exam Mode and Centres | Written Test / CBT in Bengaluru or in different cities across India (ISTRAC reserves the right to conduct it online or offline) |
| Exam Medium | Hindi or English, at the candidate’s option |
| Call Letter / Hall Ticket | Sent to the registered e-mail ID and mobile number only; no separate hard copy will be sent by post |
| Skill Test Venue | Bengaluru only, for shortlisted candidates (date not yet announced) |
| Official Website | www.isro.gov.in and www.istrac.gov.in |
Important Dates
| Event | Date |
|---|---|
| Date of Advertisement | 27.06.2026 |
| Online Application Start | 27.06.2026 (10:00 AM) |
| Last Date for Online Application | 20.07.2026 (11:55 PM) — closed |
| Cut-off Date for Age, Qualification and Experience | 20.07.2026 |
| Date of Computer Based Test (CBT) | 25.09.2026 |
| Call Letter / Hall Ticket Release | Not specified in notification — will be sent by e-mail and SMS before the exam |
| Skill Test Date | Not specified in notification |
Posts Covered by This Exam
The 25.09.2026 Computer Based Test covers every post advertised under Advt. No. ISTRAC:02:2026. The table below is background from the original notification, so candidates who have already applied can confirm which post they are sitting for.
| Post Code | Post and Discipline | Vacancies | Essential Qualification | Pay Level |
|---|---|---|---|---|
| 001 | Technician-B (ITI Electronics Mechanic) | 08 (05 at ISTRAC, 03 at MCF Hassan) | SSLC / SSC / Matriculation plus ITI / NTC / NAC from NCVT in Electronics Mechanic, Technician Power Electronic Systems, Mechanic Consumer Electronic Appliances or Mechanic Industrial Electronics trade | Level 3 |
| 002 | Technician-B (ITI Carpenter) | 01 | SSLC / SSC / Matriculation plus ITI / NTC / NAC from NCVT in Carpenter trade | Level 3 |
| 003 | Draughtsman-B (Civil) | 01 (backlog vacancy, PwBD-OH) | SSLC / SSC / Matriculation plus ITI / NTC / NAC from NCVT in Draughtsman Civil trade | Level 3 |
| 004 | Draughtsman-B (Mechanical) | 01 | SSLC / SSC / Matriculation plus ITI / NTC / NAC from NCVT in Draughtsman Mechanical trade | Level 3 |
| 005 | Technical Assistant (Electronics) | 06 | First Class Diploma in Electronics and Communication Engineering from a recognised State Board | Level 7 |
| 006 | Technical Assistant (Mechanical) | 01 | First Class Diploma in Mechanical Engineering from a recognised State Board | Level 7 |
| 007 | Scientific Assistant (Computer Science) | 04 | First Class B.Sc. with Computer Science as the main subject from a recognised University or Institution | Level 7 |
| 008 | Scientific Assistant (Mathematics) | 01 | First Class B.Sc. with Mathematics as the main subject from a recognised University or Institution | Level 7 |
| 009 | Library Assistant-A | 01 | First Class Graduate plus First Class Master’s degree in Library Science, Library and Information Science or equivalent | Level 7 |
| 010 | Cook-A | 02 (01 at ISTRAC, 01 at MCF Hassan) | SSLC / SSC pass or equivalent plus 05 years experience as a cook in a well-established hotel or canteen | Level 2 |
| Total | All posts | 26 | — | — |
Note: Age limit for all posts was 18 to 35 years as on 20.07.2026, with 05 years relaxation for SC/ST and 03 years for OBC candidates against posts reserved for those categories. Approximate gross emoluments are Rs. 21,700 per month plus admissible allowances at Level 3, Rs. 44,900 per month plus admissible allowances at Level 7, and Rs. 19,900 per month plus admissible allowances at Level 2.
Exam Pattern and Pass Criteria
| Stage | Details |
|---|---|
| Written Test / CBT — Technical Assistant, Scientific Assistant and Library Assistant-A | 80 objective questions (MCQs) in 1 hour 30 minutes. Marking: +1 for each correct answer and -0.33 for each wrong answer. The syllabus is curriculum based, drawn from the essential qualification of the post. Qualifying marks: 32 out of 80 for Unreserved candidates and 24 out of 80 for reserved candidates, only where the post is reserved for that category. Held on 25.09.2026. |
| Written Test / CBT — Technician-B and Draughtsman-B | 80 objective questions (MCQs) in 1 hour 30 minutes, with +1 and -0.33 marking, on a curriculum-based syllabus. Qualifying marks: 32 out of 80 for Unreserved candidates and 24 out of 80 for reserved candidates against reserved posts. Held on 25.09.2026. |
| Written Test / CBT — Cook-A | 60 objective questions (MCQs) in 1 hour 30 minutes, with +1 and -0.33 marking, on a curriculum-based syllabus. Held on 25.09.2026. |
| Shortlisting for Skill Test | Based on performance in the Written Test / CBT and the number of vacancies notified, candidates are shortlisted in a 1:5 ratio with a minimum of 10 candidates per post. Documents uploaded with the application are verified at this stage; appearing in the CBT by itself does not confer eligibility. |
| Skill Test | Purely qualifying, conducted on a go / no-go basis for 100 marks in Bengaluru only. Qualifying marks are 50 out of 100 for Unreserved and 40 out of 100 for reserved candidates. For Cook-A the qualifying mark is 60 out of 100 with no relaxation for any category. For Library Assistant-A the skill test covers computer literacy. |
| Final Selection | Based solely on the marks obtained in the Written Test / CBT, among candidates who qualify the Skill Test. In case of a tie, the academic scores of the notified essential qualification are the tie-breaker; for Technician-B and Draughtsman-B, candidates holding a valid NAC score get preference over those who do not. |
What This Means for You
- Mark 25.09.2026 as your exam date. This is the Computer Based Test for every post under Advt. No. ISTRAC:02:2026; the skill test date has not been announced yet.
- Watch your registered e-mail ID, including the spam and junk folders, and your registered mobile number. Call letters for the CBT are sent only by e-mail and SMS, and no hard copy will be posted to you.
- Keep your online Registration Number safe. You will need it to log in to the ISTRAC application portal, where the call letter is published for download.
- Do not write in asking to change your exam centre, e-mail ID or mobile number — the notification states clearly that such requests will not be entertained.
- Revise against the curriculum of your qualifying exam and practise with negative marking, since every wrong answer costs 0.33 marks.
Note: This update fixes only the date of the Computer Based Test. Every other condition of Advt. No. ISTRAC:02:2026 — eligibility, vacancies, selection process and fee rules — stays exactly as published in the original advertisement. Carrying a printed call letter and an original photo identity document to the exam centre is standard practice for ISRO written tests, though the advertisement itself does not list exam-day documents.
Important Links
| ISTRAC Exam Date Notice (ISRO Careers Page) | View Official Notice |
| Download Official Notification (PDF) | Download Advt. No. ISTRAC:02:2026 |
| Candidate Login / Call Letter Portal | Login to ISTRAC Application Portal |
| ISTRAC Official Website | Visit istrac.gov.in |
| Join Telegram Channel | Join Telegram Channel |
| Join WhatsApp Channel | Join WhatsApp Channel |
Common Mistakes to Avoid
- Waiting for a call letter to arrive by post — ISTRAC sends hall tickets only by e-mail and SMS to the contact details you registered with.
- Not checking the spam or junk folder of your registered e-mail; ISTRAC states it will not be responsible for a call letter that does not reach you.
- Asking for a change of exam centre, e-mail ID or mobile number, which the notification says will not be entertained at any stage.
- Guessing blindly in the CBT — each wrong answer deducts 0.33 marks and can pull you below the 32 out of 80 cut-off.
- Assuming the processing fee comes back automatically; it is refunded only to candidates who actually appear for the written test / CBT, into the bank account entered in the application.
- Treating the skill test as a scoring round — it is purely qualifying, and your final merit comes only from the CBT marks.
Frequently Asked Questions
1. When is the ISTRAC Computer Based Test 2026?
The Computer Based Test for Advt. No. ISTRAC:02:2026 will be held on 25 September 2026, as announced on the ISRO careers page.
2. Which posts does this exam cover?
All 26 posts in the advertisement: Technician-B, Draughtsman-B, Technical Assistant, Scientific Assistant, Library Assistant-A and Cook-A.
3. Where will the ISTRAC CBT be held?
The written test / CBT will be conducted in Bengaluru or in different cities across India, while the skill test for shortlisted candidates will be held in Bengaluru only.
4. How will I receive my ISTRAC call letter?
Call letters and hall tickets are sent only to your registered e-mail ID and mobile number, and no separate hard copy will be sent by post.
5. Can I still apply for ISTRAC Advt. No. ISTRAC:02:2026?
No, online applications closed on 20.07.2026 at 11:55 PM and the portal now accepts candidate logins only.
6. What is the ISTRAC CBT exam pattern?
80 MCQs in 1 hour 30 minutes for all posts except Cook-A, which has 60 MCQs in the same duration, with +1 for a correct answer and -0.33 for a wrong one, and candidates may write it in Hindi or English.
7. What are the qualifying marks in the ISTRAC written test?
32 out of 80 for Unreserved candidates and 24 out of 80 for reserved candidates, applicable only where the post is reserved for that category.
8. Will the ISTRAC processing fee be refunded?
Yes — Rs. 500 for Technical Assistant, Scientific Assistant and Library Assistant-A, and Rs. 400 for Technician-B, Draughtsman-B and Cook-A, but only to candidates who actually appear for the written test / CBT.
Disclaimer: The information above has been compiled from the official notification for the convenience of job seekers. Candidates are advised to verify all details from the official website before applying.
